Look at way he carries the bag, his facial expressions, his attire. Im putting my life on this guy as a prime suspect. His facial expression.

NO ONE would carry a bag like that in a crowd, he is moving around with a bag on his arm why wouldnt you wear it on your back? Makes zero sense. He placed the bag and moved out, cause the bag is missing from his persons later in photos.

Think about it...

if you were going to place a bag in a crowd, wouldnt that be the best position for it? On your forarm for a quick drop off.

You have to ask why would you have a massively filled backpack at while watching a marathon, who would want to stand there with a havy bag on their back for hours. Think about it. All those dudes are super suspect. Makes me think more than 1 bomb was intended to go in that area but someone chickened out.

Not to mention in the pics the people holding the backpacks were later photographed WITHOUT them on. Why would you take off your backpack (which would normally have personal belongings) and leave it somewhere in such a public crowded area?

This is a good start. I'm not gonna jump to any conclusions but those two n*ggas with the backpacks need to be found.